KR102352635B1 - Mill Machine For Solid Material - Google Patents

Abstract

The present invention relates to a particle milling machine including a function which mills a nonmetal material in a fine particle form and polishes corners of particles not to be sharp. The milling machine comprises: a frame; a main drive motor installed at the frame; a milling body driven by the main drive motor; a material supply part supplying a solid material to the milling body; and a material collection part collecting the milled solid material discharged from the milling body. The milling body includes: a main shaft receiving torque from the main drive motor to be rotated; an impeller installed on the main shaft; a plurality of blades radially installed at the impeller around the main shaft; and a vessel providing a milling space mounted therein with the impeller and the blades and provided therein with a material outlet. A plurality of grooves are formed at an inner wall of the vessel over the entire section in a circumferential direction.

Description

Mill Machine For Solid Material

The present invention relates to a particle crushing apparatus, and more particularly, to a particle crushing apparatus comprising a function of grinding a non-metallic material into fine particles, but not to have sharp edges of the particles.

[R&D project supporting this invention]
[Project unique number] D2020032
[Buddhist name] Gyeonggi-do
[Research and Management Specialized Institution] Gyeonggi-do Economic Science Promotion Agency
[Research project name] Company-led (general)
[Research project name] Development of equipment for spheroidization of natural graphite for high energy density
[Contribution rate] 1/1
[Supervised Research Institution] JEM Co., Ltd.
[Research Period] March 01, 2020 ~ February 28, 2021
Conventionally, a crushing device for crushing a solid material has been used in various industrial fields. A milling device is generally used as a device for finely pulverizing a solid material. The double ball mill is a device that grinds particles by putting metal or ceramic balls together with raw materials into the vessel and rotating them at high speed. In addition, various grinding devices such as a roll mill, a pin mill, and a vibrating mill are used.

Republic of Korea Utility Model Registration No. 20-0492151 discloses a grain crusher capable of pulverizing grains in a dry state while reducing damage to grains due to heat generated during grain pulverization when grains are pulverized in a dry manner. Such a grain crushing apparatus includes a supply hopper into which grain is put, a supply control unit including a supply feeder and a supply feeder driving motor, a grinding unit including a grinding rotary plate and a grinding driving motor, a discharge unit, a sensor unit, and a control unit. The feed feeder falls from the feed hopper and adjusts the input amount of grains fed into the crushing unit. The grinding rotation plate is configured in the form of a disk in which a plurality of grinding pins are protruded. However, such a crusher is for grain, and it is difficult to precisely crush particles in the general industrial field.

Republic of Korea Patent Registration No. 10-0780337 relates to a pulverizing device for powdery raw materials, which uses compressed air containing steam to form a swirling air stream to pulverize the powdery raw materials into fine powders, and at the same time, the oil vapor is converted into the powder We propose a pulverizing apparatus for powdered raw materials including a jet mill that is deposited on the powdery raw material while colliding with the raw material and a cyclone located at the rear end of the jet mill to collect the fine powder discharged from the jet mill.

This is to allow oil coating to be made at the same time as grinding, and it is different from the purpose of reducing the roughness of particles through strong grinding force.

Republic of Korea Utility Model Registration No. 20-0492151 Korean Patent Registration No. 10-0780337

An object of the present invention is to provide a pulverizing device for a solid material, in particular to provide a pulverizing device capable of reducing the size of particles as well as minimizing the angular portion of the particles, that is, so that the pulverized particles are not sharp. aim to do

For the above purpose, the frame; a main driving motor installed on the frame; a grinding body driven by the main driving motor; a material supply unit for supplying a solid material to the grinding body; A material collection unit for collecting the crushed solid material discharged from the crushing body;

The grinding body may include a main shaft rotating by receiving rotational force from the main driving motor; an impeller installed on the main shaft; a plurality of blades radially installed on the impeller with respect to the main shaft; and a vessel providing a crushing space in which the impeller and the blade are built, and having a material outlet;

It is achieved by a crushing device for a solid material, characterized in that the inner wall surface of the vessel is provided with a plurality of grooves over the entire section along the circumferential direction.

According to another feature of the present invention, the groove is provided in a direction parallel to the main shaft and in a straight line, and the groove may be provided in a semi-cylindrical shape.

According to another feature of the present invention, the blade is in the form of a triangular plate and may be fixedly installed on the upper surface of the impeller in a form that increases in height in the radial direction.

According to another feature of the present invention, the impeller includes a cylindrical body provided with a discharge hole through which the material is discharged in the radial direction; an impeller top plate coupled to the upper surface of the cylindrical body, the inlet through which the material is introduced, provided at the center; And coupled to the lower end of the cylindrical body as coupled to the main shaft, the upper surface may include an impeller lower plate inclined downward in the radial direction.

According to another feature of the present invention, a cone-shaped guide member may be coupled to the center of the impeller lower plate so that the material flowing into the impeller inner space through the inlet of the impeller upper plate is guided in the radial direction.

According to the present invention, a blade strikes a solid material to impact the inner wall of the vessel, and a groove is provided on the inner wall of the vessel, and the groove reflects or circulates the material, thereby causing the material to have a lot of physical impact. is provided According to the present invention, there is provided a crushing device for a solid material that grinds a material subjected to a large number of impacts in a round manner without the angular portions of the particles along with crushing.

1 is an overall side configuration diagram of a crushing apparatus for a solid material according to an embodiment of the present invention.
2 is an overall plan configuration view of a crushing device for a solid material according to an embodiment of the present invention.
Figure 3 is a longitudinal cross-sectional view of the crushing body of the crushing device for a solid material according to an embodiment of the present invention.
Figure 4 is a cutaway perspective view of the bevel of the grinding body of the grinding device for a solid material according to an embodiment of the present invention.
5 is a cut-away perspective view of the impeller of the crushing body of the crushing device for a solid material according to an embodiment of the present invention.
6 is a schematic exploded perspective view of the crushing body of the crushing device for a solid material according to an embodiment of the present invention.

Hereinafter, the specific content of the present invention will be described in detail with reference to the accompanying drawings 1 to 6 at the same time.

The crushing device (1) for a solid material according to the present invention is a frame (2); a main driving motor (3) installed on the frame (2); a grinding body (5) driven by the main driving motor (3); a material supply unit (6) for supplying a solid material to the grinding body (5); and a material collection unit 7 for collecting the crushed solid material discharged from the crushing body 5 . The drive pulley 4 installed on the rotating shaft of the main drive motor 3 and the driven pulley 41 installed on the grinding body 5 are connected by a transmission belt 8 .

The core of the present invention lies in the crushing body 5, and the remaining components can be designed and changed in various ways.

The grinding body 5 includes a main shaft 42 rotating by receiving rotational force from the main driving motor 3, an impeller 20 installed on the main shaft 42, and the impeller 20. It includes a plurality of blades 30 installed radially around the main shaft 42 , and a vessel 10 in which the impeller 20 and the blade 30 are built.

The main shaft 42 is fixedly installed on the frame 2 and is rotatably installed inside the main shaft housing 40 for supporting the vessel.

The vessel 10 is an open top container that provides a working space, that is, a grinding space, and includes a cylindrical side plate body 11 and a bottom plate 16 . An impeller installation hole 12 for installing the impeller 20 is provided at the center of the bottom plate 16 of the vessel 10, and a material outlet 13 is provided on the side. A valve mechanism 17 for controlling the material discharge is installed at the material discharge port 13 .

As shown in Figure 4, the inner wall surface of the vessel 10 is provided with a plurality of grooves 14 over the entire section along the circumferential direction. According to this embodiment, the groove 14 is installed in a direction parallel to the main shaft 42 and is provided in a straight line at the same time. Further, the groove 14 may be provided in a semi-cylindrical shape. This groove 14 is for a large amount of the material that is impacted and collides with the inner wall surface of the vessel 10 is reflected or circulated along the groove 14 so that it flows toward the impeller 20 again.

An upper portion of the vessel 10 is covered and fixed with a lid-shaped cover 50 as shown in FIG. 1 . A material supply pipe 51 is connected to the cover 50 , and the material is supplied through the material supply pipe 51 .

"와 같은 형태로 되어 있다. 블레이드(30)는 임펠러상판에 고정 설치되는 고정부(31)와 고정부(31)의 상부에 설치되는 타격부(32)로 구성된다. 도시된 바에 의하면 블레이드(30)는 지면에 수직을 이루도록 설치된다. According to the embodiment of the present invention, the blade 30 is in the form of a triangular plate as shown in FIG. 5 and has a height increasing in the radial direction.

The blade 30 is composed of a fixing part 31 fixedly installed on the impeller upper plate and a striking part 32 installed on the upper part of the fixing part 31. As shown, the blade ( 30) is installed so as to be perpendicular to the ground.

According to a feature of the present invention, the impeller 20 includes a cylindrical body 21 provided with a discharge hole 21a through which the material is discharged in a radial direction, and an impeller top plate 22 coupled to the upper surface of the cylindrical body 21 and , and an impeller lower plate 24 coupled to the lower end of the cylindrical body 21 .
The impeller upper plate 22 and the impeller lower plate 24 are spaced apart from each other by a diaphragm 25 interposed therebetween so as to be perpendicular to the ground along the circumferential direction. A discharge hole 21a through which the material is discharged is provided by the diaphragm 25 .
An inlet (22a) through which the material is introduced is provided at the center of the impeller upper plate (22). The impeller lower plate 24 is coupled to the upper end of the main shaft 42 . The upper surface of the lower impeller plate 24 is inclined downward in the radial direction. This is to ensure that the material falling on the drawing is guided to the outside of the impeller 20 , that is, in the radial direction.

The material flowing into the impeller inner space through the inlet 22a of the impeller upper plate 22 is radially induced by centrifugal force and exits through the discharge hole 21a.

However, the material in the center has a small centrifugal force, and a means is provided to guide the material staying in the center to the outside. This means may be a cone-shaped guide member 23 coupled to the center of the impeller lower plate 24 . The cross section of the guide member 23 is changed in a curved shape such as a quadratic function along its height direction.

The configuration shown and described above is merely a preferred embodiment based on the technical idea of the present invention. Those skilled in the art will be able to make various changes based on common technical knowledge, but it should be noted that these may be included in the protection scope of the present invention. Various combinations of the embodiments disclosed above are possible, and all possible combinations are within the scope of the present invention.

1: crusher 2: frame
3: main drive motor 4: drive pulley
5: grinding body 6: material supply part
7: Material collection rejection 10: Vessel
11: side plate body 13: material outlet
14: groove 16: bottom plate
17: valve mechanism 20: impeller
21: cylindrical body 22: impeller top plate
23: guide member 24: impeller lower plate
25: diaphragm 30: blade
31: fixed part 32: striking part
40: main shaft housing 41: driven pulley
42: main shaft 50: cover
51: material supply pipe

Claims (4)

frame; a main driving motor installed on the frame; a grinding body driven by the main driving motor; a material supply unit for supplying a solid material to the grinding body; A material collection unit for collecting the crushed solid material discharged from the crushing body;
The grinding body may include a main shaft rotating by receiving rotational force from the main driving motor; an impeller installed on the main shaft; a plurality of blades radially installed on the impeller with respect to the main shaft; and a vessel providing a crushing space in which the impeller and the blade are built, and having a material outlet;
The impeller includes: a cylindrical body provided with a discharge hole through which the material is discharged in a radial direction; an impeller top plate coupled to the upper surface of the cylindrical body, the inlet through which the material is introduced, provided at the center; and an impeller lower plate coupled to the lower end of the cylindrical body as coupled to the main shaft, the upper surface of which is inclined downward in the radial direction; a diaphragm interposed between the impeller upper plate and the impeller lower plate to be perpendicular to the ground along the circumferential direction;
A plurality of grooves are provided on the inner wall surface of the vessel over the entire section along the circumferential direction;
The blade is
As the height increases in the radial direction, "

It is in the form of a plate of the same shape as "; it consists of a fixing part 31 fixedly installed on the impeller upper plate, and a striking part 32 installed on the upper part of the fixing part 31, so as to be perpendicular to the ground. A crushing device for solid materials, characterized in that it is installed.
According to claim 1,
The concave groove is a crushing device for a solid material, characterized in that provided in a semi-cylindrical shape.
According to claim 1,
At the center of the impeller lower plate,
A crushing device for a solid material, characterized in that the conical guide member is coupled and installed so that the material flowing into the impeller inner space through the inlet of the impeller upper plate is guided in the radial direction. delete

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